When you need a dessert in a hurry and the freezer is doing half the work for you, this old-fashioned style baked blackberry treat is hard to beat. It has the spirit of the simple fruit desserts many Midwestern home cooks have leaned on for generations: a pan of berries, a handful of pantry staples, and the oven turning it all into something bubbling, sweet, and comforting. Using frozen raw whole blackberries makes it especially handy in any season, and the end result lands somewhere between a cobbler and a crisp, with plenty of jammy fruit tucked under a golden topping.
Serve this warm with a scoop of vanilla ice cream, a spoonful of whipped cream, or a pour of cold heavy cream if you like dessert the old farmhouse way. It also goes nicely with a cup of coffee after supper, and if you want to stretch it for company, set out a few extra berries on the side and a little bowl of toasted nuts for topping.
5-Ingredient Oven Baked Blackberry Dessert
Servings: 6
Ingredients
4 cups frozen raw whole blackberries
1 cup yellow cake mix, dry
1/2 cup granulated sugar
1/2 cup unsalted butter, melted
1 teaspoon ground cinnamon
Directions
1. Preheat the oven to 375°F. Lightly grease a small sheet pan or quarter sheet pan with butter or cooking spray.
2. Spread the frozen blackberries evenly in the prepared pan. Sprinkle the sugar and cinnamon over the berries, tossing very gently right in the pan to coat them a little.
3. Scatter the dry cake mix evenly across the top, covering the berries as best you can without packing it down.
4. Drizzle the melted butter all over the cake mix, trying to moisten as much of the surface as possible so the topping bakes up golden.
5. Bake for 35 to 40 minutes, until the berries are bubbling around the edges and the top is golden with a few crisp spots. Let it rest 10 minutes before serving so the juices settle a bit.
Variations & Tips
Add lemon: A little fresh lemon zest over the berries brightens the whole pan and gives the blackberries a fresher taste, especially if your fruit is very sweet.
Use a different cake mix: White cake mix or butter cake mix both work nicely here if that is what you have in the pantry. Each one gives a slightly different flavor, but the method stays the same.
Make it more cobbler-like: If you prefer a softer topping, stir the melted butter right into the cake mix until crumbly before scattering it over the berries. That gives you a more even crust with fewer dry patches.
Watch the pan size: A quarter sheet pan or similarly sized small baking pan works best. If you spread the berries too thin in a large pan, the dessert can dry out instead of staying juicy.
Serve it warm, not piping hot: Letting the dessert sit for a few minutes after baking helps the blackberry juices thicken, so each spoonful comes out nicely instead of running all over the plate.